Update README.md

README.md

@@ -58,24 +58,33 @@ ensures greater diversity than existing ones. Please refer to our [arXiv paper](
 
    <img src="https://cdn-uploads.huggingface.co/production/uploads/6878e482bd4380c813fd99de/deWUNg0C2bxl7ZDQFfowu.png" alt="transform" width="40%">
 
-4. Raw solver output
+4. Volumetric flow quantities on the near-field simulation mesh
 
-   The raw output of surface flow (`surf.cgns`) and 3D volume fields (`vol.cgns`) is also available in their original formats (CGNS files with the ADF format). They need the
+   Volumetric flow data are also provided for potential future use. We provide the cell-centric coordinates and five core flow quantities at each simulation cell, and the flow 
+   quantities are in the order of density, pressure, and the velocities in the \\(x, y, z \\) directions. Since the simulation requires a large far field to implement the 
+   freestream boundary condition, the values at the far mesh points are the same as the freestream condition. To avoid this reluctance, we truncate the flow field at 51 in the 
+   far-field direction for each block. The original structural mesh blocks are flattened to one dimension and concatenated to each other, which leads to a size of 
+   \\(8 \times 2,204,800 \\) for each volumetric flow field.
+
+5. Raw solver input & output
+
+   The raw input surface mesh (`wing.xyz`), output of surface flow (`surf.cgns`), and 3D volume fields (`vol.cgns`) are also available in their original formats (CGNS files with the ADF format). They need the
    CGNS library to be read out. Since they are too large, they are available via university storage upon reasonable request to the authors.
 
 
 The table below summarizes the data.
 
-|Type | File & Description | Size 
-|-|-|-|
-|Geometric parameters | `Configs.dat` | shape parameters  |  5.0 MB
-|Information | `index.npy` | group information, operating conditions, and aerodynamic coefficients |  2.8 MB
-|Surface mesh | `*\wing.xyz` | surface simulation mesh |  7.8 GB 
-|         | `origingeom.npy` | reference surface mesh (grid points) |  3.3 GB 
-|         | `geom0.npy` | reference surface mesh (cell center) |  3.3 GB   
-|Surface flow | `data.npy` | \\( C_p, \bm {C_f} \\) at reference mesh (cell center) |  22.7 GB 
-|        | `*\surf.cgns` | raw surface flow output | 161.5 GB
-|Volume flow | `*\vol.cgns` | raw flow field output |  5.5 TB 
+|Type | File | Description | Shape | Size |
+|-|-|-|-|-|
+|Geometric parameters | `Configs.dat` | shape parameters  | N x 57 | 5.0 MB
+|Information | `index.npy` | group information, operating conditions, and aerodynamic coefficients | N x 9 | 2.8 MB
+|Surface mesh | `origingeom.npy` | reference surface mesh (grid points) | N x 3 x 129 x 257 | 3.3 GB 
+|         | `geom0.npy` | reference surface mesh (cell center) | N x 3 x 128 x 256 | 3.3 GB   
+|Surface flow | `data.npy` | \\( C_p, \bm {C_f} \\) at reference mesh (cell center) | N x 3 x 128 x 256 | 22.7 GB 
+|Volume flow | `data_vol.*.npy.zst` | \\(x, y, z, \rho, p, v_x, v_y, v_z\\) at near-field volumetric simulation mesh (cell center) | N x 8 x 2,204,800 |  2.3 TB （46 files）
+|Raw data     | `*\wing.xyz` | surface simulation mesh | | 7.8 GB 
+|        | `*\surf.cgns` | raw surface flow output | | 161.5 GB
+|        | `*\vol.cgns` | raw flow field output | | 5.5 TB 
 
 
 The simulations are conducted on the 160-core high-performance computing cluster at AeroLab, Tsinghua University, for over four months.